Brush



Aug. 6, 1935. R. L. GORKER 6 h/N y.

BRUSH Filed Feb. l5, 1,934

l l u I I m i Patented Aug.` 6, 1935 ,PATENT OFFICE BRUSH u Ralph L. Gorker, Chicago, Ill. Application February 13, 19134, serial No. 710,976 l 6 Claims.

U bakeries it has been the practice to provide a greasing machine for the greasing and oiling of the baking pans" preparatory to the introduction of the dough. Machines for this `purpose `have beenprovided with a plurality of fountain brushes through which hot oil, lard or the like is pumped from a suitable container to and through the interior of the brush for saturating the bristles thereof As the oil is being fed to the bristles the machine operates to rotate the brushes, the direction of rotation being reversed at the end` of each revolution. While the brushes are thus rotating the operator "manually passes the baking pan over the brush, thereby greasing the interior of the pan.' The fountain brushes which have heretofore been used in machines of this character have been made with a brush head or bristle carrying member made of Wood. The tufts of bristles are retained in the apertures of the Wooden block or brush head, either by having the tufts of bristles cemented therein or by stapling them inthe apertures by lthe use of small staples. The use l of brushes constructed in either of the above manners has many decided disadvantageswhen used in an environment of' hot oils and greases.

'Brushes made of Wood with the tufts of bristles secured in either of the above manners have been found to be decidedly objectionable for the reason that in vcemented brushes the hot greases or oils working their way in andamongst the bristles saturate the dried cement and in short time tend to deteriorate it, thereby loosening the bristles from' their apertures or sccketsand permitting them tofall therefrom. In the brushes wherein the tufts of bristles'are retained by staples it has been found that the constant movement back and forth of the bristles caused during the greasing operation will tend to loosen the staples in their anchored positions andresu-lt in the gradual loss of bristles, The loosening and loss of bristles during the greasing operation cause the loose bristles to cling to the oiled baking pan, which in most instances remain unobserved by the operator and eventually find their Way into the baked precinct,` causing disastrous effects, both from the standpoint of health and of neatness. in the production of a baked product. It isto obviate these decided disadvantages and to produce a brush which can be used in combination with a greasing machine of the foregoing character, wherein the hotgreases or oils will not cause a loosening (CI. 15;I99)

or loss of the bristles, that my invention is directed to. l One of the objects of my invention isV to provide for use in combination with a greasing machine of the foregoing character a brush, wherein the 5 bristles thereof will beprevented from becoming loose from their retaining sockets during the greasing operation.

Another object is to provide a. brush formed of a plurality of sections which are assembled to l0 form an integral brush.

Another object is'to provide a brush formed of a plurality of metallic' sections each of said sections retaining. bristles and adapted when asseml p bled to form an integral brush; i5

Another object is to provide a greasing brush having flexible bristles for the sides thereof and bristles. of lesser flexibility for the top or main greasingj surface.

Another object is to provide a brush for use in 2o connection with a greasing machine which can .readily be attached-thereto and detached therefrom in a minimum of time.

Another object is to provide a method of making 'a brush wherein the brush is made up of aplu- 25 rality of sections.` l

4Another object is to provide a method of making a metallicv greasing brush, ,for use in combination with a greasing machine, wherein the brush is formed of a. plurality of' sections secured together 30 to form an integral structure for connection with the greasing machine.

Other objects will appear as this description progresses.

Fig. 1 is a perspective of my improved brush; 35 Fig. 2 is an elevational view of one-half of the brush; Fig. 3 is a cross section of one of Vthe metallic sections showing the manner of securing the bristles thereto; I Y

Fig, 4 is a perspective view of one of the metallic sections which forms a part of the head or bristle retaining member; Fig. 5 is a perspective view of member;

Fig. 6 is a cross section of the brush showing its connection. with the greasing machine;

Fig. '7 is a perspective of the upper part of the shaft to which my brush is secured, and

I Fig. 8 shows a modied form of ller having a rubber washer at its end.

The brush inits assembled form as shown in Fig. 1 is cubically shaped and provided with sides l0 and a top surface ll which are adapted for 55 the filler or core light` metal.

contac-t with the sides and bottom respectively of the interior of the baking pan I2.

The brush is made of two metallic sections I3 and I 4 made preferably of aluminum or other These sections when joined together form somewhat of a paraboloid and are adapted to form the head or bristle retaining member of the brush. Each of said sections has a central convex hollow portion I5, a base I6 and a dome shaped top Il. The base and top portions are provided with semicircular recesses IB and I9, which when the sections are secured together form aligned openings 2li and ZI Each of the sections I3 and I 4 has a series of rows of tapered apertures or sockets in which the tufts of bristles are secured.

The axes of the apertures at the top are almost vertical while those of the sides gradually decline until they assume a horizontal position at the base of the metal section.

The manner of securing the bristles to the head sections I3 and I 4 will now be described.y One end of the stitching wire 26 is anchored to one of the apertures either at the top or bottom of the section. A tuft of bristles is then folded approximately at its midpoint. This folded tuft is inserted in the socket in the following manner: the free end of the stitching wire is passed outwardly from the interior of the section member I3 or I4 through the aperture to embrace the midpoint of the folded tuft, it is then passed interiorly through the same aperture and drawn inwardly until the folded center of the tuft seats within the aperture, then the free end of the wire is passed outwardly through the adjacent'aperture and the same process is repeated until all the sockets are lled with bristles, the free end of the wire is then permanently clamped or interwined to prevent its loosening. It will thus be seen that in this manner each metal section which comprises one half of the brush is independently covered with tufts which are securely retained in the metal section.

The wooden core or filler member 21 as shown in Fig. 4 is shaped to fill the hollow space dei-ined by the joined metal sections I3 and I 4. The iller is provided centrally thereof with a longitudinal 'annular opening 28 which is adapted to align with the openings 28 and 2l of the head. It is further provided with a transverse opening 29, which is adapted to receive a pin 3G, the pin being suitably secured in openings in the'sections I3 and I4. To secure the sections together, I provide a flat disc 3i having a central opening 32. The disc is secured to the two sections by screws 33 or the like.

In assembling the vbrush each section is covered with tufts of bristles as described, the filler Z7 is then interposed between the half sections such that it nests tightly therewithin the arrangement being such that the faces 34 of the sections rest against each other, the at disc 3l is then screwed to the bottom of the sections to rmly secure the sections together, the pinV 3U is then passed through said sections and through the trans- Verse opening in the ller to provide additional reinforcement and also to provide a means for attaching the brush to the greasing machine. It will be seen that when the hot oils, which are used in the greasing opera-tion, pass through and around the brush head, the oils also come in Contact with the wooden core and saturate it thereby causing the core `to expand to form a tighter contact with the metallic sections. 'I'he core then bears tightly against the' inner walls of the sections and against the wire staples which secure the tufts of hair. This prevents the Itufts of hairs from loosening in their sockets and from falling therefrom.

The greasing machine indicated at 40, only the upper portion of which is shown in Figs. 6 and 7, has a spindle 4I with a bayonet slot 42 at its upper end to receive the pin 30 of the brush assembly and to securely lock the brush to the spindle, for rotation therewith. The spindle has a shoulder 43 upon which the bottom of the brush rests. The spindle has a longitudinal opening 44 which communicates with an oil supply pipe 45. Rotation of the brush is effected by the rack and pinion arrangement 46 and 47.

As the rack 46 moves back and forth thereby actuating the pinion and vertical spindle 4I to rotate the brush rst in one direction and then in the other, the hot oils or greases are pumped through the supply pipe 45 and pass through the longitudinal opening of the vertical shaft and through'the opening in the wooden ller to the bristles of the brush. The cil uniformly saturates the bristles and thus enables the pan to be thoroughly greased.

In Figure 8 I have illustrated a modified form of core which shows a rubber washer 50 inserted and imbedded within a recess 5I in the wooden core. This prevents the leakage of oils between the vertical shaft and core.

In the construction of my brush I use hog bristles to form the top as these are rather stiff and withstand great wear and for the sides I use horse bristles which have greater flexibility and help retain the oils within the brush connes. In the use of the term bristles throughout the specification I use it in the descriptive sense of referring to hairs or the like, without limitation to any particular type of hairs.

I claim:

1. A brush for use'in combination with a greasing machine, having two metallic sections adapted to form a hollow central portion, bristles secured to each of said sections, a wooden core nested within said hollow central portion and means associated with said core for securing said brush toa greasing machine.

2. A brush having a head formed of two metallic sections provided with openings at the top and bottom thereof, bristles secured to each of said sections, a wooden core within said sections and having a longitudinal opening registering with said iirst mentioned openings and means secured within said core and transversely passing through said longitudinal opening for permitting coupling of said brush to an operating member.

3. A brush having a head formed of a plurality of metallic sections, bristles secured to each of said sections, said sections having aligned openings at the top and bottom portions, a wooden core within said sections and having an opening in alignment with said rst mentioned openings, a pin passing through said core opening and secured to said metallic sections.

4. A brush formed with a hollow metallic head having aligned openings therein, bristles secured to said head, a wooden core confined within said hollow head and having a longitudinal opening in alignment with said first mentioned openings, and means extending transversely of said longitudinal opening for securing said brush to an operating machine.

5. A brush having a metallic head formed of two hollow sections each having a semicircular opening at the top and bottom portions thereof, bristles secured to each of said sections, a

Wooden core within said hollow portion and having a longitudinal opening in alignment with said first mentioned openings, a pin secured to said sections and extending transversely of said core opening, and means for securely fastening said metallic sections together.

6. In a brush for use in combination ,with a.

greasing machine, formed of a plurality of hollow sections shaped to form a. rhomboid, bristles secured to said sec ions, a. wooden core within said sections and eans for securing said sections together to form an integral brush.

RALPH L. GORKER. 

